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Move texture extensions to draft; add tests
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sdk/tests/conformance/extensions/ext-texture-mirror-clamp-to-edge.html
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| <!-- | ||
| Copyright (c) 2023 The Khronos Group Inc. | ||
| Use of this source code is governed by an MIT-style license that can be | ||
| found in the LICENSE.txt file. | ||
| --> | ||
|
|
||
| <!DOCTYPE html> | ||
| <html> | ||
| <head> | ||
| <meta charset="utf-8"> | ||
| <title>WebGL EXT_texture_mirror_clamp_to_edge Conformance Tests</title> | ||
| <link rel="stylesheet" href="../../resources/js-test-style.css"/> | ||
| <script src="../../js/js-test-pre.js"></script> | ||
| <script src="../../js/webgl-test-utils.js"></script> | ||
| </head> | ||
| <body> | ||
| <canvas width="32" height="32" id="c"></canvas> | ||
| <div id="description"></div> | ||
| <div id="console"></div> | ||
| <script> | ||
| "use strict"; | ||
| description("This test verifies the functionality of the EXT_texture_mirror_clamp_to_edge extension, if it is available."); | ||
|
|
||
| debug(""); | ||
|
|
||
| var wtu = WebGLTestUtils; | ||
| var gl = wtu.create3DContext("c"); | ||
| const w = gl.drawingBufferWidth; | ||
| const h = gl.drawingBufferHeight; | ||
| var ext; | ||
| var sampler; | ||
|
|
||
| const pnames = ['TEXTURE_WRAP_S', 'TEXTURE_WRAP_T']; | ||
| if (gl.TEXTURE_WRAP_R) { | ||
| pnames.push('TEXTURE_WRAP_R'); | ||
| } | ||
|
|
||
| function runTestNoExtension() { | ||
| debug(""); | ||
| debug("Check the texture parameter without the extension"); | ||
|
|
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| const tex = gl.createTexture(); | ||
| gl.bindTexture(gl.TEXTURE_2D, tex); | ||
|
|
||
| const MIRROR_CLAMP_TO_EDGE_EXT = 0x8743; | ||
|
|
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| for (const pname of pnames) { | ||
| gl.texParameteri(gl.TEXTURE_2D, gl[pname], MIRROR_CLAMP_TO_EDGE_EXT); | ||
| wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, `value unknown for ${pname} via texParameteri without enabling the extension`); | ||
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no more errors"); | ||
| gl.texParameterf(gl.TEXTURE_2D, gl[pname], MIRROR_CLAMP_TO_EDGE_EXT); | ||
| wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, `value unknown for ${pname} via texParameterf without enabling the extension`); | ||
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no more errors"); | ||
| } | ||
|
|
||
| if (!gl.createSampler) return; | ||
|
|
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| const sampler = gl.createSampler(); | ||
| for (const pname of pnames) { | ||
| gl.samplerParameteri(sampler, gl[pname], MIRROR_CLAMP_TO_EDGE_EXT); | ||
| wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, `value unknown for ${pname} via samplerParameteri without enabling the extension`); | ||
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no more errors"); | ||
| gl.samplerParameterf(sampler, gl[pname], MIRROR_CLAMP_TO_EDGE_EXT); | ||
| wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, `value unknown for ${pname} via samplerParameterf without enabling the extension`); | ||
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no more errors"); | ||
| } | ||
| } | ||
|
|
||
| function checkEnums() { | ||
| debug(""); | ||
| debug("Check enums"); | ||
| shouldBe("ext.MIRROR_CLAMP_TO_EDGE_EXT", "0x8743"); | ||
| } | ||
|
|
||
| function checkQueries() { | ||
| debug(""); | ||
| debug("Check texture and sampler state updates"); | ||
|
|
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| const tex = gl.createTexture(); | ||
| gl.bindTexture(gl.TEXTURE_2D, tex); | ||
|
|
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| for (const pname of pnames) { | ||
| gl.texParameteri(gl.TEXTURE_2D, gl[pname], ext.MIRROR_CLAMP_TO_EDGE_EXT); | ||
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from texParameteri"); | ||
| shouldBe(`gl.getTexParameter(gl.TEXTURE_2D, gl.${pname})`, "ext.MIRROR_CLAMP_TO_EDGE_EXT"); | ||
| gl.texParameteri(gl.TEXTURE_2D, gl[pname], gl.REPEAT); | ||
|
|
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| gl.texParameterf(gl.TEXTURE_2D, gl[pname], ext.MIRROR_CLAMP_TO_EDGE_EXT); | ||
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from texParameterf"); | ||
| shouldBe(`gl.getTexParameter(gl.TEXTURE_2D, gl.${pname})`, "ext.MIRROR_CLAMP_TO_EDGE_EXT"); | ||
| gl.texParameterf(gl.TEXTURE_2D, gl[pname], gl.REPEAT); | ||
| } | ||
|
|
||
| if (!gl.createSampler) return; | ||
|
|
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| sampler = gl.createSampler(); | ||
| for (const pname of pnames) { | ||
| gl.samplerParameteri(sampler, gl[pname], ext.MIRROR_CLAMP_TO_EDGE_EXT); | ||
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from samplerParameteri"); | ||
| shouldBe(`gl.getSamplerParameter(sampler, gl.${pname})`, "ext.MIRROR_CLAMP_TO_EDGE_EXT"); | ||
| gl.samplerParameteri(sampler, gl[pname], gl.REPEAT); | ||
|
|
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| gl.samplerParameterf(sampler, gl[pname], ext.MIRROR_CLAMP_TO_EDGE_EXT); | ||
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from samplerParameterf"); | ||
| shouldBe(`gl.getSamplerParameter(sampler, gl.${pname})`, "ext.MIRROR_CLAMP_TO_EDGE_EXT"); | ||
| gl.samplerParameterf(sampler, gl[pname], gl.REPEAT); | ||
| } | ||
| } | ||
|
|
||
| function checkSampling() { | ||
| debug(""); | ||
| debug(`Check texture sampling with mirror-clamp-to-edge mode`); | ||
|
|
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| wtu.setupUnitQuad(gl); | ||
| const vs = `precision highp float; | ||
| attribute vec4 vPosition; | ||
| varying vec2 texCoord; | ||
| void main() { | ||
| gl_Position = vec4(vPosition.xy, 0.0, 1.0); | ||
| texCoord = vPosition.xy * 2.0; | ||
| }`; | ||
| const program = wtu.setupProgram(gl, [vs, wtu.simpleTextureFragmentShader]); | ||
| gl.useProgram(program); | ||
|
|
||
| const black = [ 0, 0, 0, 255]; | ||
| const red = [255, 0, 0, 255]; | ||
| const green = [ 0, 255, 0, 255]; | ||
| const blue = [ 0, 0, 255, 255]; | ||
| const data = new Uint8Array([...black, ...red, ...green, ...blue]); | ||
|
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| function checkPixels() { | ||
| function checkPixel(x, y, color) { | ||
| const screen = (s, t) => s * (t * 0.5 + 0.5); | ||
| wtu.checkCanvasRect(gl, screen(w, x), screen(h, y), 1, 1, color, | ||
| `(${x.toFixed(3)}, ${y.toFixed(3)}): ${color} `); | ||
| } | ||
| for (const signX of [+1, -1]) { | ||
| for (const signY of [+1, -1]) { | ||
| // This function expects screen-space coordinates | ||
| // normalized to [-1, +1]. The region from [0, 0] | ||
| // to [+1, +1] behaves like regular clamp-to-edge. | ||
| // Other three quadrants should be mirrored. | ||
| checkPixel(signX * 0.125, signY * 0.125, black); | ||
| checkPixel(signX * 0.375, signY * 0.125, red); | ||
| checkPixel(signX * 0.750, signY * 0.125, red); | ||
| checkPixel(signX * 0.125, signY * 0.375, green); | ||
| checkPixel(signX * 0.125, signY * 0.750, green); | ||
| checkPixel(signX * 0.375, signY * 0.375, blue); | ||
| checkPixel(signX * 0.750, signY * 0.375, blue); | ||
| checkPixel(signX * 0.375, signY * 0.750, blue); | ||
| checkPixel(signX * 0.750, signY * 0.750, blue); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| const tex = gl.createTexture(); | ||
| gl.bindTexture(gl.TEXTURE_2D, tex); | ||
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, data); | ||
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, ext.MIRROR_CLAMP_TO_EDGE_EXT); | ||
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, ext.MIRROR_CLAMP_TO_EDGE_EXT); | ||
|
|
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| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); | ||
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); | ||
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texture created and configured"); | ||
|
|
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| wtu.drawUnitQuad(gl); | ||
| checkPixels(); | ||
|
|
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| if (!gl.createSampler) return; | ||
|
|
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| debug(""); | ||
| debug(`Check texture sampling with mirror-clamp-to-edge mode using a sampler object`); | ||
|
|
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| const texWithSampler = gl.createTexture(); | ||
| gl.bindTexture(gl.TEXTURE_2D, texWithSampler); | ||
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, data); | ||
|
|
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| sampler = gl.createSampler(); | ||
| gl.bindSampler(0, sampler); | ||
| gl.samplerParameteri(sampler, gl.TEXTURE_WRAP_S, ext.MIRROR_CLAMP_TO_EDGE_EXT); | ||
| gl.samplerParameteri(sampler, gl.TEXTURE_WRAP_T, ext.MIRROR_CLAMP_TO_EDGE_EXT); | ||
| gl.samplerParameteri(sampler, gl.TEXTURE_MAG_FILTER, gl.NEAREST); | ||
| gl.samplerParameteri(sampler, gl.TEXTURE_MIN_FILTER, gl.NEAREST); | ||
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texture created and sampler configured"); | ||
|
|
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| wtu.drawUnitQuad(gl); | ||
| checkPixels(); | ||
| } | ||
|
|
||
| function runTest() { | ||
| if (!gl) { | ||
| testFailed("context does not exist"); | ||
| return; | ||
| } | ||
| testPassed("context exists"); | ||
|
|
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| runTestNoExtension(); | ||
|
|
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| ext = gl.getExtension("EXT_texture_mirror_clamp_to_edge"); | ||
| wtu.runExtensionSupportedTest(gl, "EXT_texture_mirror_clamp_to_edge", ext !== null); | ||
|
|
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| if (ext !== null) { | ||
| checkEnums(); | ||
| checkQueries(); | ||
| checkSampling(); | ||
| } else { | ||
| testPassed("No EXT_texture_mirror_clamp_to_edge support -- this is legal"); | ||
| } | ||
| } | ||
|
|
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| runTest(); | ||
|
|
||
| var successfullyParsed = true; | ||
| </script> | ||
| <script src="../../js/js-test-post.js"></script> | ||
| </body> | ||
| </html> |
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